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富士通的技术使连接家庭与NTT日本光纤网的模块的制造成本降低了90％。这些模块能发送和接收光信号,实现光纤网络中的光信号与电话和其它家用信息终端的电信号之间的互相转换。富士通是通过减少元件数量和简化加工过程来降低制造成本的。它将光电转换元件(光子探测器和半导体激光器)、电子部件和光纤安装在同一块硅片上。发送器件包括一个光学二极管,在发送光信号时起监视作用。接收器件能以150Mbps的速度处理信息。 NTT的研究人员则发明了一种更经济的制作方法以降
Fujitsu’s technology has reduced the manufacturing cost of modules connecting homes and NTT Japan Optical Networks by 90%. These modules can send and receive optical signals to enable the conversion of optical signals in fiber optic networks and electrical signals from telephones and other home information terminals. Fujitsu is reducing manufacturing costs by reducing the number of components and simplifying the machining process. It installs photoelectric conversion elements (photon detectors and semiconductor lasers), electronic components and optical fibers on the same silicon wafer. The transmitting device includes an optical diode that monitors when transmitting optical signals. The receiving device can process information at 150 Mbps. NTT researchers invented a more economical method of production